Archived posting to the Leica Users Group, 2015/05/05

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Subject: [Leica] New M(246) Outputs 12 bit Files
From: rgacpa at gmail.com (Robert Adler)
Date: Tue, 5 May 2015 12:10:11 -0700
References: <CAAsXt4M8TOqVD30bX_TRpDr8Q6QDFXvZWTSSso2_PL6zdHUWsg@mail.gmail.com> <CAMk=+XWCtsT_eGOSCLZMSMP=SyxdTPbCEopcWTE7chvXnyAjGw@mail.gmail.com> <5548ECD3.6040900@lighttube.net> <CAAsXt4OmRRQ9NBFUyYMrdWm=uwJ6tFQgxPDBQsEU_9aTQohg2Q@mail.gmail.com> <5DAB6492-6B47-4620-A495-5D0943B49364@gmail.com> <CAH1UNJ005f-LZsi2290Kdg3mE6jqAoyuauqd0Fjf5w8BU=Yrng@mail.gmail.com> <ED53986B-36FF-47D6-B6B7-CBA4F6DD8D31@mac.com>

Thanks Adam. Agree.

On Tue, May 5, 2015 at 10:54 AM, Adam Bridge <abridge at mac.com> wrote:

> In an image exposed so the lightest white is all the way to the right on
> the histogram then the darker parts of the image won?t have as much detail
> in a 12 bit image as in a 14 bit image because it?s in the very dark
> regions where there are fewer bits available.
>
> If the camera?s noise attributes don?t warrant 14 bits of detail then
> keeping at 12 would make sense since the noise in the darks wouldn?t be
> resolved.
>
> In audio the difference between 12 and 14 bits in the sampling system
> would be obvious to many - probably even to me.
>
> I?m a little troubled by the reviewer whose ?loyalty is to Leica?. I
> almost quit reading at that point even though he tried to make it better in
> subsequent sentences.
>
> Adam
>
> > On 2015 May 5, at 9:50 AM, Jayanand Govindaraj <jayanand at gmail.com>
> wrote:
> >
> > 12 bit = 2 raised to the power of 12 = 4096 shades of gray
> >
> > 14 bit = 2 raised to the power of 14 = 16384 shades of gray
> >
> > Quite a bit of tonal difference technically. Whether the human eye can
> > perceive it in a meaningful way in a print - who knows?
> >
> > Cheers
> > Jayanand
> >
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>



-- 
Bob Adler
www.robertadlerphotography.com


Replies: Reply from csaganich at gmail.com (CJ andS) ([Leica] New M(246) Outputs 12 bit Files)
In reply to: Message from rgacpa at gmail.com (Robert Adler) ([Leica] New M(246) Outputs 12 bit Files)
Message from tmanley at gmail.com (Tina Manley) ([Leica] New M(246) Outputs 12 bit Files)
Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] New M(246) Outputs 12 bit Files)
Message from rgacpa at gmail.com (Robert Adler) ([Leica] New M(246) Outputs 12 bit Files)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] New M(246) Outputs 12 bit Files)
Message from jayanand at gmail.com (Jayanand Govindaraj) ([Leica] New M(246) Outputs 12 bit Files)
Message from abridge at mac.com (Adam Bridge) ([Leica] New M(246) Outputs 12 bit Files)